音标与读法

这里为大家介绍下covariance 是什么意思，希望能帮助到各位朋友。

中英文翻译

n.

【统计学】协方差，协变性；共离散。

(statistics) the mean value of the product of the deviations of two variates from their respective means

In probability theory and statistics, covariance is a measure of how much two random variables change together. If the greater values of one variable mainly correspond with the greater values of the other variable, and the same holds for the smaller values, i.

例句与用法

1.The data on covariance presently available are here .

目前所能获得的关于协变的资料都在这儿。

2.The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602 .

从半同胞协方差估计出来的，同一性状的加性遗传方差为09602。

3.The variable selection in covariance adjusted estimates

协方差改进估计中的变量选择

4.Umvique of the covariance matrix in growth curve model

增长曲线模型中协差阵的最优估计

5.Fittings of systematic errors and covariance matrices in navigation

精密定位的观测值随机模型

6.Covariance and contravariance in delegates

委托中的协变和逆变c

7.Covariance and contravariance in delegates c programming guide

委托中的协变和逆变（ c #编程指南）

8.Portfolio frontier ; frontier portfolio ; q - zero - covariance portfolio frontier

资产组合前沿资产前沿组合

9.An algorithm of covariance analysis

协方差分析的一种算法

10.The covariance should be comprehended and followed dialectically

必须辩证地掌握和遵循图书馆学发展的协变性。

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